Automobile terminal is now a kind of automobile connector, which is very important. Automobile terminal is the connector of current and signal transmission in all kinds of electronic wiring harness in the whole automobile, so there are high requirements for the terminals at both ends of the wiring harness. Automobile terminals can be said to be the nervous system connecting all kinds of electrical appliances and sensors, carrying the task of current and signal transmission, so if the waterproof of automobile terminals is not good, the light situation will cause the failure of automobile function, and the serious situation will cause the short circuit, causing the vehicle burning. Therefore, the waterproof performance of automobile terminal is particularly important in the waterproof of automobile electrical system. Especially for the terminals used in new energy vehicles, the waterproof requirements are more strict, so how to do the air tightness and waterproof test of automobile terminals?

If we want to test the IP68 protection level of automobile terminals, the air tightness and waterproof test of automobile terminals is mainly to test whether there is water in the position of row needle, shell and sealant pouring processing. We can use the air tightness and waterproof tester to realize the purpose of air tightness and waterproof test of automobile terminals. To realize the air tightness and waterproof test of automobile terminals, we must first customize the air tightness and waterproof test of automobile terminals according to the structure of terminals Put the terminal into the mold, and after the upper and lower molds are closed, the automobile terminal can be completely sealed. Then, make the automobile terminal air tightness and waterproof detection tooling, and connect it to the test port of the automobile terminal air tightness and waterproof detection equipment to start the detection. Automobile terminal air tightness waterproof detection equipment is a direct detection method with compressed air as the medium, which can well achieve non-destructive testing, because the detection medium is air, air will not cause damage and impact on the product; secondly, because air molecules are smaller than water molecules, it can detect very small leakage, and the operation is relatively simple, which can improve the efficiency.